Multiple images

[jzarca01]

What if there are multiple images in a heic file ? For example https://dynamicwallpaper.club/wallpaper/brzq430bmso

[catdad]

I'm sure we can figure something out. Let me play around with it for a bit

[catdad]

Published in 1.1.0.

const fs = require('fs');
const decode = require('heic-decode');

(async () => {
  const buffer = await promisify(fs.readFile)('/path/to/my/multi-image.heic');
  const images = decode.all({ buffer });

  for (let image of images) {
    // decode and use each image individually
    // so you don't run out of memory
    const {
      width,  // integer width of the image
      height, // integer height of the image
      data    // ArrayBuffer containing decoded raw image data
    } = await image.decode();
  }
})();

Note: not much image processing happens in order to get the images themselves, so if you want say only the 4th image in a file of 12 images, you can choose to call decode on just the 4th item in the array. This skips pretty much all the processing in the other images.

[jzarca01]

Thanks a lot !